Editing Practical reason (section)

{{Short description|Use of reason to decide how to act}}
In [[philosophy]], '''practical reason''' is the use of [[reason]] to decide how to [[philosophy of action|act]]. It contrasts with theoretical reason, often called [[speculative reason]], the use of reason to decide what to [[Belief|believe]]. For example, agents use practical reason to decide whether to build a [[telescope]], but theoretical reason to decide which of two theories of light and [[optics]] is the best.